Perhaps you should try some spelling variations:
"fop petrov OR peterov OR petruv OR peteruv OR petruo OR petr OR petroi o.s.*" » "fop petrov OR peterov OR petruv OR peteruv OR petruo OR petr OR petri o.s.*" (Expand Search), "fop petrov OR peterov OR petruv OR peteruv OR petruo OR petr OR petro o.s.*" (Expand Search), "fop petrov OR peterov OR petruv OR peteruv OR petruo OR petr OR petrow o.s.*" (Expand Search)

You may be able to get more results by adjusting your search query.

• Removing quotes may allow a broader search: fop (((petrov OR peterov) OR (petruv OR peteruv)) OR (petruo OR (petr OR petroi))) o.s.*.